64784980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{3719}}^1$

素因数の和:3808

約数の個数: 48

約数和(自身を含む): 148740480

約数和(自身を除く): 83955500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 260, 268, 335, 670, 871, 1340, 1742, 3484, 3719, 4355, 7438, 8710, 14876, 17420, 18595, 37190, 48347, 74380, 96694, 193388, 241735, 249173, 483470, 498346, 966940, 996692, 1245865, 2491730, 3239249, 4983460, 6478498, 12956996, 16196245, 32392490, 64784980]

約数ペア:

[(1, 64784980), (2, 32392490), (4, 16196245), (5, 12956996), (10, 6478498), (13, 4983460), (20, 3239249), (26, 2491730), (52, 1245865), (65, 996692), (67, 966940), (130, 498346), (134, 483470), (260, 249173), (268, 241735), (335, 193388), (670, 96694), (871, 74380), (1340, 48347), (1742, 37190), (3484, 18595), (3719, 17420), (4355, 14876), (7438, 8710)]